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Asked: 2026-05-17T17:37:29+00:00

I’m learning my way around visual studio at the moment. If I’ve turned set

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I’m learning my way around visual studio at the moment. If I’ve turned set /Wall I’ll be greeted with a seemingly unhealthy amount of warning messages although my application will compile just fine.

Is this normal? Changing the error level will stop the messages. It looks as if they are all related to the C++ STL or its header files – same thing?

If I build the program using code::blocks (GCC) then no errors are reported despite the same warning level.

What’s going on here?

update:
visual studio /Wall output: http://pastebin.com/FBGLd2Hb

visual studio /W4 output: http://pastebin.com/YuWKVS9G

The code is actually from Wrox Professional C++.
I could be wrong about my usage of the word warnings?

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1 Answer

  1. Editorial Team

    With g++ -Wall does not turn on all warnings, just a practical subset. I suspect that with MSVC /Wall turns on more warnings than is practical. MSVC is very enthusiastic about warnings.

    With MSVC use /W4 for high warning level.

    You’ll have to turn off MSVC sillywarnings; you can use my anti-MSVC-sillywarnings header for that.

    Cheers & hth.,

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